STM32 MCUs Products

I am developing a product using STM32F407ZGT. During multi-communication with other products, it was found that RS-485 communication was not available under 7BIT and ODD conditions. I am asking for help to solve it.

Please check whether 7BIT communication is not supported for STM32F407ZGT product.

I need to log sensor data in SD card after every 1 minute using stm32f407vgt6 controller and need to read all the data from the file stored in sd card and print it using uart interface.

SPI always calling callback

Hello to everyone. I'm creating a project where i need to communicate via SPI. My main board, is configured as full duplex Master, and i have other STM working as full duplex slave. But, i have a problem. If i configure the boards to just have one fu...

To measure Sine wave Voltage and Frequency directly with help of MCU STM32F030CC.

I want to measure AC signal voltage and frequency .Presently i am using function generator to generate sine wave having 3Vpp(peak to peak Voltage) and feed directly to MCU pin which support ADC channel(Channel 7).So any one can guide on this.I have i...

Use HAL_SPI_Receive_DMA receive data. Sometimes the received data shift 3 bytes. Why? The board is STM32F750, build as SPI slave.

SPI slave receives data of unknow size.When SPI master gives a rising edge, SPI slave detects the rising edge and starts HAL_SPI_Receive_DMA(define a large size amount of data to be received). When SPI master gives a falling edge, SPI slave detects t...

When will the ST microcontrollers (STM32F4/F7/H7 series) be available again?

For some time, microcontrollers ST have not been available on the market. The lead time is of the order of 6-8 months. Suppliers do not guarantee deliveries. When will the situation return to normal?Thanks.

ADC + DMA convCplt and convHalfCplt

Hi,I am trying to use a circular DMA to transfer ADC samples on STM32L4R9VI.I configured a 3.2 Msps sampling frequency, which means that HAL_ADC_ConvCpltCallback and HAL_ADC_ConvHalfCpltCallback must be called each 10 ms for a 64000 elemets buffer.Ho...